【1分でOK】開いている画像すべてを一括でpng保存する方法【Photoshop】

// Photoshop Script: Export All Open Documents as PNG

// Function to save the document as a PNG
function saveAsPNG(doc, outputFolder) {
    var saveFile = new File(outputFolder + "/" + doc.name.replace(/\.[^\.]+$/, '') + ".png");
    var pngSaveOptions = new PNGSaveOptions();
    doc.saveAs(saveFile, pngSaveOptions, true, Extension.LOWERCASE);
}

// Main function
function main() {
    // Ask the user for the output folder
    var outputFolder = Folder.selectDialog("Choose the folder to save the PNG files");
    if (outputFolder == null) {
        return;  // User canceled, exit the script
    }

    // Get all open documents
    var originalDoc = app.activeDocument;
    var docs = app.documents;

    for (var i = 0; i < docs.length; i++) {
        app.activeDocument = docs[i];
        saveAsPNG(app.activeDocument, outputFolder);
    }

    // Restore the original active document
    app.activeDocument = originalDoc;
}

// Run the main function
main();